Can Sleeping Near Plants Improve Sleep? What Science Says
There's something calming about a bedroom with plants in it. They make the room feel alive, natural, and soft. Many people swear that sleeping near plants has improved their rest β and the wellness world is full of recommendations for the "best bedroom plants" for sleep. But does the science actually back this up?
The answer, as with many wellness topics, is: yes, partly β but not for all the reasons you might think. Some claims about bedroom plants are genuinely supported by research. Others are significantly overstated. And one popular concern β that plants steal your oxygen at night β is essentially a myth.
In this guide, we're cutting through the noise to give you an honest, research-based picture of what bedroom plants can and can't do for your sleep, which specific plants have the best evidence behind them, and how to build a bedroom environment that actually supports better rest.
What science actually says about plants and sleep, the oxygen/carbon dioxide question addressed honestly, how plants reduce stress and improve bedroom air quality, the seven best plants for your bedroom with evidence ratings, common myths debunked, potential downsides to know, and how bedroom plants fit into a complete sleep environment.
Can Sleeping Near Plants Improve Sleep? The Honest Answer
The straightforward answer is: yes, but not dramatically β and the way they help is probably different from what most plant-for-sleep articles suggest. Let's look at the actual evidence for each proposed mechanism.
The Psychological and Stress-Reduction Effect β Real and Well-Supported
The most consistently supported benefit of bedroom plants for sleep is psychological rather than physiological. Multiple studies have found that being in the presence of plants β even just seeing greenery in your environment β reliably reduces perceived stress, lowers anxiety, and improves mood. Since stress and anxiety are among the most common barriers to sleep onset, this indirect benefit is genuinely meaningful.
Research in environmental psychology has consistently found that natural elements in indoor environments β plants, natural materials, views of greenery β produce measurable reductions in cortisol and sympathetic nervous system activity. A calmer, less cortisol-flooded body is more ready for sleep. This "biophilic" response (our innate positive response to nature) is one of the most reliable effects of bedroom plants on sleep quality.
Air Quality Benefits β Real but Often Overstated
Plants do filter certain airborne compounds from indoor air β this was famously studied by NASA in the 1980s. However, what's often left out is that the amounts studied were in sealed laboratory conditions with far higher plant densities than any normal bedroom. In a typical bedroom with one or a few houseplants, the air-purifying effect is real but modest. It's a benefit, but it's not going to transform air quality the way industrial air purifiers do.
Scent Effects β Powerful for Specific Plants
For plants like lavender that produce aromatic compounds, the sleep benefit through scent is one of the most robust in the research. Lavender's linalool compound has been studied extensively and has genuine, measurable effects on the nervous system that support relaxation and sleep. This is a real, direct benefit β but it applies specifically to lavender (and a handful of other aromatic plants), not to most houseplants.
A review published in the International Journal of Environmental Research and Public Health found that exposure to indoor plants was consistently associated with reduced psychological stress, lower blood pressure, and improved self-reported wellbeing across multiple studies. The effects were attributed primarily to the stress-reduction properties of visual exposure to nature rather than air quality changes β supporting the idea that even the sight of plants in your bedroom can contribute to the calmer pre-sleep state that improves sleep quality.
Do Plants Release Carbon Dioxide at Night? The Myth Addressed
This is probably the most common concern people have about sleeping with plants in the bedroom β and it needs a clear, honest answer.
Yes, plants do release small amounts of carbon dioxide at night. During the day, plants photosynthesize β they absorb COβ and release oxygen. At night, without sunlight, photosynthesis stops and plants switch to cellular respiration only β the same process animals use β which consumes oxygen and releases COβ.
However, the amount of COβ released by typical bedroom plants is so tiny that it has essentially no meaningful impact on the air you breathe while sleeping. Here's some perspective:
- A typical human exhales approximately 200β250 liters of COβ per hour during sleep
- A typical bedroom plant releases around 0.01β0.05 liters of COβ per hour at night
- You would need thousands of plants in a sealed room to approach any level of COβ that might affect breathing or health
- Your bedroom is never completely sealed β normal ventilation continuously exchanges the air
The concern about plants depleting oxygen or raising COβ to harmful levels at night is not supported by any credible scientific evidence and should be treated as a myth. You can confidently sleep near plants without any concern about oxygen levels.
"Sleeping with plants in your bedroom is dangerous because they steal your oxygen." This is false. The COβ released by typical bedroom plants is negligibly small compared to what humans breathe out themselves. No mainstream scientific or medical body recommends against keeping plants in bedrooms. The Royal Horticultural Society, NASA, and multiple academic institutions have addressed this concern and confirmed it has no basis in reality for normal plant quantities.
Best Plants to Keep in Your Bedroom β With Evidence Ratings
Here are the seven best-researched plants for the bedroom, with honest evidence ratings for their actual sleep benefits.
The most research-backed plant specifically for sleep. Lavender contains linalool β an aromatic compound with well-documented anxiolytic (anti-anxiety) and mildly sedative properties. Multiple clinical studies have found that lavender aromatherapy significantly improves sleep quality, reduces nighttime awakenings, and increases time in slow-wave sleep. Even a potted lavender plant near your bed can release enough scent to produce a measurable relaxation effect β though a diffuser with lavender oil is more potent for therapeutic purposes.
The snake plant is one of the most popular bedroom plants, and for good reason beyond aesthetics. It's among a small group of plants that perform CAM photosynthesis β a process that allows them to continue absorbing COβ and releasing oxygen even at night, making the "plants steal your oxygen" concern entirely irrelevant for this species. It also filters volatile organic compounds like formaldehyde and benzene from the air. Perhaps most importantly, it's nearly indestructible β perfect for those who struggle to keep plants alive.
Peace lilies were among the top performers in NASA's air purification study, showing effectiveness at filtering benzene, formaldehyde, ammonia, and other volatile compounds from indoor air. They're also beautiful, producing elegant white flowers, and they droop visibly when they need water β making them easy to care for. Their air-filtering properties are most relevant for bedrooms in newer buildings or recently renovated spaces where VOC levels from paint, flooring, and furniture may be elevated. Note: toxic to pets and small children if ingested.
Like the snake plant, aloe vera uses CAM photosynthesis and releases oxygen at night rather than COβ β a genuine advantage over typical houseplants for bedroom use. Aloe was also featured prominently in NASA's clean air study for its ability to filter formaldehyde. It's extremely low maintenance (water only every few weeks), loves a sunny windowsill, and doubles as a first-aid plant for minor burns and skin irritation. Its calming green presence adds to the biophilic effect that reduces stress in bedroom environments.
Jasmine has a smaller but notable research base for sleep improvement specifically. A study published in the Journal of Biological Chemistry found that jasmine fragrance had a calming effect on the nervous system similar to some anti-anxiety medications, by binding to GABA receptors in the brain β the same receptors targeted by many sleep medications, but through a much gentler, natural mechanism. Participants in jasmine-scented rooms reported reduced anxiety and improved sleep quality compared to unscented rooms. It does need more light than some bedroom plants, so a windowsill location is ideal.
Spider plants are one of the most effective air-purifying houseplants in NASA's studies, with particularly impressive results at filtering formaldehyde β one of the most common indoor pollutants from pressed wood furniture and cleaning products. They're also one of the easiest plants to keep alive, grow quickly, and produce charming cascading "spiderettes" that can be propagated into new plants. While not specifically studied for sleep, their combination of air filtering, easy care, and natural aesthetic make them a strong practical choice for bedrooms.
Valerian root is one of the most extensively studied herbal sleep aids β taken internally, it has good clinical evidence for reducing sleep onset time and improving sleep quality through GABA enhancement. As a bedroom plant, the sleep benefit comes primarily from its flowers' sweet scent, which can produce a mild relaxing effect when the plant is in bloom. It's not the most common houseplant and requires more care than the others on this list, but for gardening enthusiasts interested in functional plants, valerian is worth considering for a bedroom that gets good natural light.
Quick Comparison β Which Bedroom Plants Are Worth It?
| Plant | Primary Sleep Benefit | Night Oβ? | Care Level | Pet Safe? |
|---|---|---|---|---|
| Lavender | Scent reduces anxiety + promotes relaxation | Standard | Moderate (needs light) | β Safe |
| Snake Plant | Night oxygen + VOC filtering | β Yes (CAM) | Very easy | Mildly toxic |
| Peace Lily | Strong VOC air filtering | Standard | Easy | Toxic to pets |
| Aloe Vera | Night oxygen + formaldehyde filtering | β Yes (CAM) | Very easy | Toxic if eaten |
| Jasmine | Scent binds GABA receptors, reduces anxiety | Standard | Moderate | β Generally safe |
| Spider Plant | Formaldehyde + CO air filtering | Standard | Very easy | β Pet safe |
| Valerian | Mild calming scent; strong oral supplement evidence | Standard | Moderate-high | β Generally safe |
Common Myths About Sleeping Near Plants β Busted
There's a lot of misinformation online about plants and sleep. Here are the most common myths and what the science actually shows.
Are There Any Downsides to Keeping Plants in the Bedroom?
For most people, bedroom plants are completely safe and beneficial. But there are a few genuine considerations worth knowing.
- Mold and damp soil β Overwatered plants develop mold in their soil, which can release spores into bedroom air. This is particularly problematic for people with mold allergies, respiratory conditions, or asthma. Water plants appropriately and ensure good pot drainage to prevent this. If you notice a musty smell from plant soil, address the watering pattern immediately.
- Pet toxicity β Many popular bedroom plants are toxic to cats and dogs if ingested β including snake plant, peace lily, aloe vera, and pothos. If you have pets that might access plants, choose pet-safe options like spider plants, Boston ferns, and areca palms, or keep plants in locations pets cannot reach.
- Pollen allergies β Flowering plants in the bedroom can aggravate pollen allergies during flowering season. If you suffer from allergies, choose non-flowering plants or ensure flowering plants are kept outside the bedroom during peak allergy season.
- Insect pests β Houseplants occasionally attract fungus gnats, aphids, or spider mites. While not dangerous, these can be annoying in a bedroom environment. Regular inspection and appropriate pest control products (neem oil is safe and effective) address this before it becomes a significant issue.
- High maintenance plants can add stress β A dying, neglected plant can have the opposite psychological effect to a healthy one. If you're not confident in your plant-keeping abilities, start with genuinely low-maintenance options like snake plants or pothos, which are very difficult to kill and still provide the visual and air quality benefits.
Other Ways to Create a Sleep-Friendly Bedroom Alongside Plants
Plants are one piece of a complete sleep environment. Here's how they fit alongside the other evidence-based bedroom improvements.
πΏ The Complete Sleep-Friendly Bedroom
For an evidence-based, comprehensive look at how every aspect of the bedroom environment affects sleep β including air quality, light, noise, temperature, and humidity β the Sleep Foundation's complete bedroom environment guide is one of the most thorough and well-sourced public resources available.
For the peer-reviewed research specifically on how plants affect indoor air quality and psychological wellbeing, this NIH-published review on indoor plants and human health covers the scientific evidence comprehensively.
πΏ Nature's Calming Touch β Inside and Out
A bedroom with plants creates a calmer, more natural environment that supports the transition to sleep. Our Oek Somnia Sleep Gummies from Oeksomnia do something complementary from the inside β reinforcing your body's natural melatonin signal so that the calming environment your plants are helping create translates into genuinely deeper, more restorative sleep.
Think of your bedroom plant as setting the atmosphere. The gummy reinforces the biology. Both are working toward the same goal: giving your nervous system every signal it needs to settle, release the day, and drift into the kind of rest your body is always trying to find.
- Carefully dosed melatonin β reinforces the natural sleep signal your plant environment supports
- Clean, natural ingredients β no artificial dyes, flavors, or unnecessary additives
- Delicious taste that makes your pre-sleep ritual in your plant-filled bedroom even more enjoyable
- Works best combined with a dark, cool, quiet room and consistent sleep timing
- A gentle, non-habit-forming nightly support that works with your body, not against it
Frequently Asked Questions
Yes β though the effect is modest and works primarily through two pathways: psychological stress reduction from visual exposure to nature, and scent-based relaxation from specific plants like lavender and jasmine. These benefits are real and well-documented in research, but shouldn't be overstated. Plants support better sleep as one element of a good sleep environment β they're not a dramatic cure for insomnia or a replacement for good sleep hygiene.
Most plants switch to cellular respiration at night (consuming oxygen and releasing COβ) when photosynthesis stops without sunlight. However, the COβ released is negligibly small β hundreds of times less than what you exhale yourself β and poses no health concern in any normal bedroom. Some plants (snake plant, aloe vera) use CAM photosynthesis and continue releasing oxygen even at night, making them particularly suitable for bedrooms if nighttime oxygen release is a priority for you.
Lavender has the strongest research evidence specifically for sleep improvement β its linalool compound reduces anxiety and improves sleep quality through well-documented mechanisms. If scent plants don't suit you, snake plant and aloe vera are excellent practical choices for air quality and nighttime oxygen production. Jasmine has compelling research on its GABA-binding scent compounds. For low-maintenance, good all-around bedroom plants, spider plant and pothos offer good air filtering with very easy care.
Yes β for most people, keeping plants in the bedroom is completely safe and mildly beneficial. The main considerations are: pet safety (check if your chosen plant is toxic to your specific pet), allergy management (avoid flowering plants during allergy season if you have pollen sensitivity), preventing mold from overwatering, and monitoring for plant pests. None of these are serious concerns for most people with normal care practices.
Yes β this is one of the most consistently supported benefits of bedroom plants. Multiple studies in environmental psychology have found that the presence of plants reduces cortisol levels, lowers sympathetic nervous system activity, and improves mood. Since elevated cortisol and psychological stress are among the most common barriers to sleep onset, plants genuinely support the calmer pre-sleep state that makes falling asleep easier and faster.
Plants do filter VOCs and some airborne compounds from indoor air β this is well-established science. However, the effect in a typical bedroom with one to a few plants is modest compared to what active air purifiers achieve. The air quality improvement is a real benefit, but probably not the primary way bedroom plants improve sleep. The stress-reduction and (for specific aromatic plants) scent-based relaxation benefits are likely more significant contributors to the sleep quality improvement most people report.
If you have cats or dogs, choose pet-safe options: spider plants and Boston ferns are both excellent air-filtering choices that are non-toxic to most pets. Areca palm is another safe, humidity-increasing option. Avoid snake plant, peace lily, aloe vera, and pothos if your pets might access them. For scent-based sleep benefits with pets, lavender in a diffuser (positioned out of pet reach) is safer than a potted plant that a curious cat or dog might chew.
A Greener Bedroom Is a Calmer Bedroom
The science on plants and sleep is encouraging, even if the dramatic claims occasionally outrun the evidence. Plants genuinely reduce psychological stress β and stress is one of the biggest obstacles to good sleep. Specific plants like lavender and jasmine have real, well-researched scent-based benefits for relaxation. Snake plants and aloe vera offer practical advantages with nighttime oxygen and air filtering. And the simple act of bringing natural elements into your sleep environment has a consistent, measurable positive effect on how calm and at ease you feel in that space.
None of this means plants are a sleep revolution on their own. But as one element of a thoughtfully designed bedroom β alongside blackout curtains, a cool room, consistent timing, and the right natural sleep support β they contribute something real and pleasant to the overall picture.
Add a snake plant to your nightstand. Put a lavender plant on your windowsill. And when you're ready for bed, take one of our Oek Somnia Sleep Gummies from Oeksomnia β because a beautifully natural bedroom deserves beautifully natural sleep support. ππΏ